Superior road safety with intelligent braking sensor and green laser
Rear bicycle light Gaciron W03 represents the pinnacle of bicycle safety light technology. It combines a highly accurate braking sensor, automatic brightness adjustment, automatic on/off when moving, and a green laser beam that outlines your safety zone on the road.

Main advantages and technological features:
- Advanced braking sensor: The built-in accelerometer detects any decrease in bike speed with high accuracy and automatically turns on a bright warning light for 3 seconds, thus warning vehicles behind you in time.
- Green laser safety beam: A powerful green laser projects a luminous safety strip onto the road behind the cyclist. The laser function and the braking sensor can be individually switched on or off at your discretion.
- Intelligent Smart Mode (Smart Auto Start/Stop): With a built-in light sensor, the light automatically adjusts its brightness depending on the day or night conditions. In addition, it automatically turns off to save battery when the bike is stationary (more than 2 minutes) and turns back on immediately when vibrations or movement are detected.
- Magnetic fastening system: The compact housing allows for extremely quick and easy installation and removal of the lamp using a strong magnetic mechanism.
- Aero compatible carrier: The included universal mount made of durable rubber allows installation on standard round and modern drop/aero seatposts.
- 6 operating modes & USB-C charging: It allows you to choose between 6 different brightness and flashing modes. It is charged via the included USB-C cable (charging time approx. 4 hours).
- IPX6 waterproof housing: Protected against heavy rain, splashing water and road dirt.
Video demonstration of operation:
In the package you will receive:
- 1x Gaciron W03AW Smart Laser rear bicycle light
- 1x Magnetic seatpost mount (suitable for round and Aero posts)
- 1x USB-C charging cable
- Instructions for use


















